Chapter 3: Enzymes

• What are Enzymes?

  Proteins produced by organisms that function as biological catalysts
• Properties of Enzymes

  Enzymes are made of protein molecules folded into different shapes

  Specific - each enzyme catalyzes one reaction

  ‘Lock and key’ model
• How do Enzymes work

  Substrate - molecule that reacts in the enzyme-catalyzed reaction

  Product - molecule produced in the reaction

  Active site - part of the enzyme where the reaction takes place
• Properties of Enzymes

  Affected by conditions of their surroundings
• Enzymes and Temperature

  Increasing temperature will increase the rate of reaction

  Optimum temperature - the maximum rate of reaction occurs

  the